Automobile radiator



D. BUTLER AUTOMOBILE RADIATOR May 15, 1928. 1,669,808

Filed Avril .27. 1927 Panama Mails,

UNITED STATES 1.669.808 ATENT OFFICE. f

.nav'm Burma, or aronnzm; IIW You auro xonrnn mra'ron.

a yummim April 27, new. man Io. 181,000.

My invention relates to automobile radiators of the etype employed in connection with water 0001' engines. Q

It is the purposeof my invention to pro- 8 vide a construction which will prevent freezing' of water within a radiator while the automobile is running, and which will constitute an efiective and eflicient' means for rapidly thawing out the radia-tor in' the event freezing of water has developed in the radiator while the automobile is idle.

Furthermore, it is the purpose of my present invention to provide a construction which will not only accomplish the results heretofore mentioned, but willalso serve to materially reduce, if not entirely eliminate, f

deposit of vapor moisture upon the. working parts beneath the hood of the automobile with resultant rusting ofsuch parts. With the foregoing and other purposes in view my invention consists in the arrangement and combination of parts to be hereinafter more fully described and claimed.

In describing myinvention in detail refuerence will be 'had to the accompanying drawing wherein like characters of reference Y denote corresponding parts inthe differentviews, and in which Fi re 1 is a rear elevation of an automoii e radiator embodying my invention,

Figure 2, a section on the line 22 of Fi re 1., Y

. the drawing-A indicates generally an automobile radiator of conventional construction which includes an n per header 10 a lower header 11, a remova le cap 12, and a steam overflow pipe-13.. As is usual the V i'pe 13 has the major portion of its length ocated exterior] of the radiator at the rear of the latter. The upper end portion of the ipe 13 enters the rear wall of the upper header and terminates within the usual header nipple 14 which receives the cap 12. '45 Within the lower header 11 I provide a pipe coil 15 both ends of which extend through the rear side wall of the header 11. One

end of the coil 15 I connect to the lower end of the steam overflow pipe 13 by a suitable- 0 union 16, while the other end thereof terminates in a downwardl directed portion 17. In operation it apparent that with steam wi fect thawing of the frozen water in an efsteam in the upper header 10 will slightl raise the ressure in. said header and sue therefore be forced into] and through the overflow pipe. 13 and thence through the coil 15 from which latter the inherent heat of the steam will be radiated.

to raise the temperature of the water in the to.

lower header 11, at which latter point the temperature of the water in "the standard radlators now in use is alwa s lowest. It will also be noted that the ra iation of heat by the coil 15 more completely condenses the o6 steam therein, so that the amount of moist vapor discharged from the end of .the coil is materially reduced as is' likewise the. amount of moisture de' ited on the workin? parts beneath the ood of the automo- 10 b' e with appreciable diminution of rust on such parts. "I

Again, assumin that the water in the radiator becomes rozen while the automo bile is idle. Upon operation ofthe engine 7 the water in the ,eylinder jackets'will. soon be converted into steamowin to the interruption of the circulation of tl ie cooling s stem. The steam thus generated is is- \charged into the up ifer header 10 through so the usual connection tween the latter. and the engine. This steam will then pass through the pipe 13 into the coil 15 from which latter its heat will beradiated and vefficient manner and at the point inthe radiator where the most complete freezing occurs,

I claim: I The combination with an automobile radiator including u per and. lower radiators; of a steam 'ove ow pipe extending continuously downwardfrom the upper header and havin its lower end disposed in the lower hea er, and a pipe coil in the lower header having one:v terminal secured to the lower end of the steam, overflow pipe and its other terminal directed-downwardl through the bottom wall of the radiator, a 1 portions of said coil between the terminals; thereof being located in a horizontal plane whereby the formation of a liquid seal within the coil by the condensation of vapor is prevented,

- In testimony whereof I hereunto afix mymvm BUTLER: 

